What are the eight life cycle hook functions of Vue>>>

Note: mainly switch between jdk1.7 and JDK1.8

1. Java needs to be modified every time JDK is switched_ HOME

2. Edit the path environment variable, as shown in the figure, and set% Java_ Home% bin and% Java_ Move home% \ bin to the top two columns

3. Add the Java application to the start toolbar java file and select the enabled JDK version

4. Modify the registry information of Java in the computer

Win + R pop up the running window, enter regedit, enter the interface “Registry Editor”, and then find

HKEY_ LOCAL_ Machine/software/javasoft/Java development kit/CurrentVersion

HKEY_ LOCAL_ Machine, software, javasoft, Java runtime environment, current version

5. Open the CMD window and input Java – version to detect

It’s not right to report an error

Error: Registry key ‘Software\JavaSoft\Java Runtime Environment’\CurrentVersion’
has value ‘1.7’, but ‘1.8’ is required.
Error: could not find java.dll
Error: Could not find Java SE Runtime Environment.

6. There are mainly the following situations when the error message appears

6.1 because a key in the registry has been localized to a Chinese name.
[HKEY]_ LOCAL_ Machine/software/javasoft/Java runtime environment]
changed to:
[HKEY_ LOCAL_ Then press F3 to change all the found “Java runtime environment” and “Java runtime environment”. 　

6.2 delete the java.exe, javaw.exe and javaws.exe in the C: Windows/system32 file

7. Check again, OK